Activity map — real sighting points on an OpenStreetMap basemap © OpenStreetMap contributors
South Africa

HW-MN0805714 – Residency

7th sighting in South Africa
Fluke of HW-MN0805714
HW-MN0805714 Confirmed in the catalog @150121
Dec 21, 2025 – Feb 10, 2026 · South Africa

South Africa · Dec 2025 – Feb 2026

61 m
Deepest dive
2:40
Longest dive
60
Dives
Sightings
7
Days between first and last sighting
51
Deepest dive on record
61 m · this residency

Dive stats modelled within real depth limits — not measured

Get actual dive data with Risa Deep →
SightingSeafloorSea tempDeepest dive (modelled)
Dec 21, 202582 m—27 m
Dec 29, 202545 m—33 m
Dec 30, 202526 m—21 m
Jan 14, 202637 m15.7°C22 m
Jan 26, 202669 m14.3°C61 m
Jan 29, 202664 m14.7°C41 m
Feb 10, 202678 m16.2°C40 m

Seafloor and sea temperature measured · ✳ dives modelled

Activity map — real sighting points on an OpenStreetMap basemap © OpenStreetMap contributors

Deepest dive against the seafloor, per sighting

Seafloor · measured Deepest dive · modelled
Dec 21, 2025 — seafloor 82 m (measured), deepest dive 27 m (modelled)Dec 21Dec 29, 2025 — seafloor 45 m (measured), deepest dive 33 m (modelled)Dec 29Dec 30, 2025 — seafloor 26 m (measured), deepest dive 21 m (modelled)Dec 30Jan 14, 2026 — seafloor 37 m (measured), deepest dive 22 m (modelled)Jan 14Jan 26, 2026 — seafloor 69 m (measured), deepest dive 61 m (modelled)Jan 26Jan 29, 2026 — seafloor 64 m (measured), deepest dive 41 m (modelled)Jan 29Feb 10, 2026 — seafloor 78 m (measured), deepest dive 40 m (modelled)Feb 10

Depth runs down from the surface. The modelled dive never passes the measured seafloor at that sighting.

Dives

61 m
Deepest dive
2:40
Longest dive
60
Dives
17 m
Avg dive depth
7
Sightings
51
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
05010061 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (69 m) and the published dive-behaviour distribution. Modelled, not measured.

Deep Effort Score

Deep

Depth, duration and recovery resolved into a single number for this session.

Unlock with Risa Deep

Place

Where this happened · Jan 26, 2026

measured
Seafloor depth
69 m
Sea-surface temperature
14.3°C
Distance from shore
6.0 km

Across the residency · 7 sightings

measured
Seafloor depth
26 m – 82 m
Sea-surface temperature
14.3°C – 16.2°C
Distance from shore
3.0 km – 11.0 km

Sources: GEBCO seafloor grid · NOAA OISST sea temperature · PacIOOS coastline distance

Activity map — real sighting points on an OpenStreetMap basemap © OpenStreetMap contributors

Source records

This activity is assembled from 7 catalogued encounters on Happywhale.

Sighting records from Happywhale, published as occurrence data via GBIF. Individual records are licensed CC0 1.0, CC BY 4.0 or CC BY-NC 4.0, depending on the contributor.

The photographs and fluke identifications behind every sighting are the work of the contributing observers — the citizen scientists, naturalists and operators who logged them, each named in the underlying GBIF occurrence record. Every activity links out to its source encounters on Happywhale. Basemaps © OpenStreetMap contributors (ODbL).

Happywhale runs on donations: support Happywhale →

Breach is an independent project. It is not affiliated with, nor endorsed by, Happywhale or GBIF.